Edit File: Block.php
<?php use Twig\TokenParser\BlockTokenParser; class_exists('Twig\TokenParser\BlockTokenParser'); @trigger_error(sprintf('Using the "Twig_TokenParser_Block" class is deprecated since Twig version 2.7, use "Twig\TokenParser\BlockTokenParser" instead.'), E_USER_DEPRECATED); if (\false) { /** @deprecated since Twig 2.7, use "Twig\TokenParser\BlockTokenParser" instead */ class Twig_TokenParser_Block extends BlockTokenParser { } }